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GEORGE F. LYNCH, O F. MILWA UKEE, WSCONSN.

Letters Patent No. 62,143, dated February 19, 1867; antedatcd February] 4, 1867.

IMPROVBD RAILROAD BOX AND JOURNAL.

TO ALL WHOM IT MAY CONCERN:

Be it known that I, GEORGE F. LYNCH, of Milwaukee, in the county of Milwaukee, 'and Stute of Wisconsin, have invented certain new and useful improvements in Boxes und Journals for Railroad Cars or other carriages, und which muy be used for shaft or journal bearings' generally, und that the following is a. full, clear, and exact description of the some, reference being hud to the accompanying drawings, marking e. part of this specilioetion, in whichl Figure 1 represents a. sectional perspective rien' of :t bor; und jonrnul :is designed for mili-ond curs.

Figure 2 represents an end view of the box or bea-ring with the journal or axle removed.

Figure 3 represents a. longitudinal vertienl section through the bex and journal.

Figures 4, 5, 6, und 7 represent details of the box, which will bc hereafter more particularly referred to.

Similar letters of reference, where they occur in the separate figures, denote like ports of the box or journal in all the druwings.

My invention consists in o, box and journal or bearing, in which ull the contact or weight-supporting parts cnn roll against each other, or one against the other, but under 'such regulation that they cannot clog'or eut, and by which means the friction is much reduced, und the necessity of frequent oiling entirely obvitited.

To enable others skilled in the nrt to malte and use my invention, I 'will proceed to describe the saine with reference to the drawings. v

The box or bearing A. is made in sect-ions, for the purpose of introducing the rings B @,cnd the rollsD E, into its interior; und when they are in place the bolts F are pnssedrthrcugh the sections, und their nuts run on, which holds all -in position. And when the journal G is inserted in the box or bearings it serves :Ls o key to keep the rings und rolls in their proper relative positions, whilst they are free to roll :tround against each other. The rings B are nitide o f round iron,`or 'approximately so,nnd form ways, n-gninst which the necks e of the smaller tapering vrollers D run. The rings C ere Inode of fiat or chmnfered iron', and are designed for holding the larger rolls Ef'lon-gitudinelly; and these rolls are dressed 01T et their ends so es to run against the chamfcr of the rings, es seen ut c c. The rollers D D alternate with euch other, one keeping thcother or nextndjecent one always in proper position. -The journal Gr has its bearing upon thc'ltuger rollers E', whilst the interposed rolls D', between those E', prevent the letter from ever getting out of proper working position. The rolls D' are prevented by their necks from runningagninst the rollers E with too much friction. The journal Gr is made with u chilled sleeve, cup, or covering over it, es seen in iig. 3, to prevent cutting or weer, whilst its inner portion, of wrought iron, gives it the necessary strength. The sleeve or covering nitty he shrunk on to the wrought-iron portion, or otherwise secured thereto. The rollers being of n tupcrin g forni, their rolling surfaces ure so arranged as to equalize, or nearly so, their relative surface speed or motion. It will be perceived that the journal Grund the rollers E rollnguinst end in concert with each other. The rollers E roll against und in concert with the rollers D', placed between them, und in the line of their length, und against the rings C, et the chnmiered corners c, at their ends. 'lhegrollers D', in addition to their rolling motion against and with the rollers E', also roll against or with the rings B, bytheir necks a, whichV keep them in proper position longitudinally. Thus all the ports, though not positively connected to cach other, are so restrained or kept in proper working position as to prevent cramping or cutting or binding between uny of them. The rings B C are .also unrestrained, being free to move with or independent of the ports bearing on or aga-inst them, thus leaving ull the ports free to move just as the friction for the time being should require of them. By this construction of journal and box,or roller und ring bearings, a. journal h'us been very rapidly run for several hours without nnylubricating material upon it, und without apparent heating or wearing, whlst'the friction has been very materially reduced; und actuel experiment has proven th'ut very.1ittle, `if any, lubrication is required. When the joui-noi is inserted into this roller-box or bearing it keeps ell the parts in their proper positions circumfcrcntiully. Y

`.Hoving thus fully described my invention, what I claim, is

Combining with a. box or bearing for un :ixle or journal n. series of rollers ond'rings, not positively fastened to eachother, or-to the box or bearing, but so controlled us to be kept in proper working position, und free to move 'with or .independent of euch other, und with or independent of the journal or shaft, substantially as and or the purpose set forth.

G. F. LYNCH.

Witnesses:

A. B. S'rouen'rox, WM. H. Rowe. 

